ubuntu編譯運行cpp文件

（用一個C++ Primer Plus里的例子好了）

• 編寫C++文件，儲存為test1.cpp

//-------------ubuntu上.cpp文件編譯與運行
#include <iostream>
int main()
{
  using namespace std;
  const int ArSize = 20;
  char name[ArSize];
  char dessert[ArSize];

  cout << "Enter your name:\n";
  cin.getline(name, ArSize);
  cout << "Enter your favorite dessert:\n";
  cin.getline(dessert, ArSize);
  cout << "I have some delicious " << dessert;
  cout << " for you, " << name << ".\n";

  return 0;
}

• 終端中輸入

xxxx@xxxx-xxxxxx-xxxxxxx-xxxxx:~/文檔/cppfile$ g++ test1.cpp

  同目錄下生成一個a.out文件

xxxx@xxxx-xxxxxx-xxxxxxx-xxxxx:~/文檔/cppfile$ ls
a.out  test1.cpp

• 終端中輸入

xxxx@xxxx-xxxxxx-xxxxxxx-xxxxx:~/文檔/cppfile$ ./a.out
Enter your name:
Rawa
Enter your favorite dessert:
Cake
I have some delicious Cake for you, Rawa.

  編譯運行成功

  由於只編譯一個源文件，所以默認情況下自動刪除了test1.o文件，若新編譯另一個cpp代碼，生成的a.out會覆蓋原有文件
  若同時編譯多個源代碼文件，則編譯器不刪除目標代碼文件

• 編譯多個文件，在終端輸入

xxxx@xxxx-xxxxxx-xxxxxxx-xxxxx:~/文檔/cppfile$ g++ testH.h test2.cpp
xxxx@xxxx-xxxxxx-xxxxxxx-xxxxx:~/文檔/cppfile$ ./a.out
This is your Pokemon! Try to talk to it.
Hello Pikachu!
Pikapika !
Pikachu ! ! !

  編譯運行成功